keck ngao project replan: ao and laser systems

Don Gavel: Keck NGAO meeting April Don Gavel: Keck NGAO meeting April 25, 200725, 2007

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Keck NGAO Project Replan:Keck NGAO Project Replan:AO and Laser SystemsAO and Laser Systems

Donald GavelDonald Gavel

NGAO Team Meeting 6NGAO Team Meeting 6April 25, 2007April 25, 2007

Don Gavel: Keck NGAO meeting Don Gavel: Keck NGAO meeting April 25, 2007April 25, 2007

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AO and Laser Systems Project Replan:AO and Laser Systems Project Replan:Outline of PresentationOutline of Presentation

• Program plan overviewProgram plan overview• Purpose and approach of the replanPurpose and approach of the replan• Key changes highlightedKey changes highlighted• Feedback from the team on schedule & level of Feedback from the team on schedule & level of

efforteffort


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AO and Laser System Program OverviewAO and Laser System Program Overview• AO and Laser System Design phase follows the system engineering AO and Laser System Design phase follows the system engineering

/ trade studies phase/ trade studies phase• Inputs: Architecture Definitions, Study results, FRDs v.1Inputs: Architecture Definitions, Study results, FRDs v.1

(June/July time frame)(June/July time frame)

• Outputs: Contributions to System Design Manual & FRDs v.2Outputs: Contributions to System Design Manual & FRDs v.2(= Conceptual Design or Proposal level => raising funding to build)(= Conceptual Design or Proposal level => raising funding to build)


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Purpose and Approach of the ReplanPurpose and Approach of the Replan

• Problem: present plan is behind schedule.Problem: present plan is behind schedule.• Approach: given currrent status and lessons Approach: given currrent status and lessons

learned, adapt the plan to achieve key goals learned, adapt the plan to achieve key goals using the resources availableusing the resources available• Play to people and institutional strengthsPlay to people and institutional strengths• Streamline the work – fewer people at higher Streamline the work – fewer people at higher

percentagepercentage• Level the plan and tie to people availabilityLevel the plan and tie to people availability


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Overview of changes in 3.2, 3.3Overview of changes in 3.2, 3.3

• WBS 3.2 AO System.WBS 3.2 AO System.• Reshuffling of personnel on four tasks.Reshuffling of personnel on four tasks.• Two new tasks:Two new tasks:

• atmospheric profileratmospheric profiler• d-IFU & LOWFS AO & Object Selection (broken out from d-IFU & LOWFS AO & Object Selection (broken out from

WBS 3.5) WBS 3.5)

• WBS 3.3 Laser Facility.WBS 3.3 Laser Facility. Reshuffling of Reshuffling of personnel on three tasks.personnel on three tasks.


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Changes to 3.2, 3.3Changes to 3.2, 3.3

WBSWBS Current Current hourshours

New New hourshours

Change justificationChange justification

3.2.2 AO 3.2.2 AO EnclosureEnclosure

100100 4040 Enclosure is straightforward engineering. Enclosure is straightforward engineering. Emissivity vs temperature is covered Emissivity vs temperature is covered elsewhere in planelsewhere in plan

3.2.3.6.2 3.2.3.6.2 Deformable Deformable

MirrorMirror

140140 6060 DM specification doesn’t require much DM specification doesn’t require much design work. Neyman & Bauman instead of design work. Neyman & Bauman instead of Flicker, Dekany, BaumanFlicker, Dekany, Bauman

3.2.3.10 3.2.3.10 Atmospheric Atmospheric

ProfilerProfiler

-- 8080 Will likely need profiler for tomography. Matt Will likely need profiler for tomography. Matt Britton leadBritton lead

3.2.3.11 D-IFU 3.2.3.11 D-IFU & LOWFS & LOWFS

Object Object SelectionSelection

-- 320320 Need to explore a number of wide field Need to explore a number of wide field MOAO pickoff mechanisms. Anna Moore MOAO pickoff mechanisms. Anna Moore leadlead

3.3.3 Laser3.3.3 Laser 100100 2020 Leverage CfAO work in this area. Gavel leadLeverage CfAO work in this area. Gavel lead


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Program Plan Changes – 3.2 DetailsProgram Plan Changes – 3.2 Details

3.2.1 AO System Architecture

Reduce from 240h total to 40h of DG (just in case any remaining issues). Change predecessor to 3.1.3.2.5

3.2.2 AO EnclosureChange predecessor to 3.1.3.2.5. Reduce from 100 to 40h - pulled in end to 9/28

3.2.3 Opto-mechanical Make predecessor 3.1.3.2.53.2.3.1 Field Rotation Pull in end date to 11/2/073.2.3.2 Optical Relay Pull in end date to 11/2/073.2.3.3 Optical Switchyard Pull in end date to 11/2/073.2.3.4 Optical Support Structure Pull in end date to 11/30/073.2.3.5 Wavefront Sensors Pull in end date to 11/16/073.2.3.5.1 High order LGS WFSs Consider DG suggestion of DG lead + BB3.2.3.5.2 High order NGS WFS Consider DG suggestion of DG lead + BB

3.2.3.5.3 Low Order NGS Wavefront SensorsVV as new lead. 40h of SK to 20h more of VV & 20h of AM

3.2.3.5.4 Calibration Wavefront Sensor CN as new lead. 40h of SK to CN3.2.3.6 Wavefront Correctors Put CN as lead

3.2.3.6.2 Deformable MirrorReduce BB from 50 to 10h. Replace 40h of RF & 30h of RD with 40h of CN. CN as lead

3.2.3.7 Acquisition CamerasReplace AB hours & lead with CN (familiar w/ MAGIQ)

3.2.3.8 Atmospheric Dispersion Correction BB replaces 16h of SK. RD lead with 4h3.2.3.9 Alignment, Diag, Metrology & Monitoring Add 20h of DLM. Reduce CN & RF by 10h each3.2.3.10 Atmospheric Profiler New task. MB lead at 50h. 7/23-8/31/07

3.2.3.11 d-IFU & LOWFS AO & Object SelectionNew task. AM lead at 200h. DG 40h. JM 80h. 5/21-8/6/07

3.2.4 Non-real-time Control EJ as new lead3.2.4.1 Non-RTC Software Remove 30h of Johnson3.2.4.2 Non-RTC Electronics Remove 40h each of JC&MR & add 40h of EJ

3.2.5.1 RTC Architecture Analysis & Design StudyRemove 20h each of RF& MR. Change start date to 6/18/07

3.2.5.2 RTC Software Module Definition Consider replacing 20h of Reinig with Palmer


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Program Plan Changes – 3.3 DetailsProgram Plan Changes – 3.3 Details

3.3.1 Laser System Architecture Change predecessor from 3.1.1.5 to 3.1.1.5.1

3.3.3 LaserReduce VV from 100 to 20h. DG new lead. DG to perform with CfAO funding

3.3.4 Laser Launch FacilityChange start & end dates for all subtasks to 7/23 & 8/31, respectively

3.3.4.1 Laser beam transportReplace 20h of SK with 16h of VV. Reduce CN from 35 to 30h. Reduce JC from 5 to 4h

3.3.4.2 Laser pointing & diagnosticsReplace 30h of AM with 15h of BB. Replace 30h of SK with 15h of CN. Reduce JC from 20 to 10h.

3.3.4.3 Laser launch telescopeReplace 50h of SK with 30h of CN. Reduce JC from 20 to 10h. Reduce VV from 50 to 30h


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Team FeedbackTeam Feedback

• WBS definitions correct and unambiguousWBS definitions correct and unambiguous• Objectives feasible in the time allocatedObjectives feasible in the time allocated• Availability, time commitmentAvailability, time commitment

keck ngao project replan: ao and laser systems

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